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scsi: mpt3sas: Disable DIF when prot_mask set to zero 

By default DIF Type 1, DIF Type 2 & DIF Type 3 will be enabled.  Also,
users can enable either DIF Type 1 or DIF Type 2 or DIF Type 3 or in any
combination using the prot_mask module parameter.

However, when the user provides a prot_mask module parameter value of zero,
then the driver is not disabling the DIF. Instead it enables all three
types.

Modify the driver to disable the DIF support if the user provides a
prot_mask module parameter value of zero.

Link: https://lore.kernel.org/r/1588065902-2726-1-git-send-email-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sreekanth Reddy 2020-04-28 05:25:02 -04:00 committed by Martin K. Petersen
parent 4778069ccf
commit e869f8ea6a
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -10764,8 +10764,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
}
/* register EEDP capabilities with SCSI layer */
if (prot_mask > 0)
scsi_host_set_prot(shost, prot_mask);
if (prot_mask >= 0)
scsi_host_set_prot(shost, (prot_mask & 0x07));
else
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION